Improvement in school-desks



B. WILSON.- School Desk.

' No. 110,101; Patented Dec. 13,1870;

inc;

haunt Gtffitt.

ELIJAH WILSON, OF NEW BRIGHTON, PENNSYLVANIA.

Linn-s mm in. 110,101, and December 13, 1870..

lMPR OVEMENT IN SCHQOL-DESKS.

ho lehodnlonfonodtointhuuliottmhtmtlndmakingpaztoftheumo.

To Ill whom may concern:

Be it known that I, ELIJAH Brighton, in the county of Beaver and State of Pennlylvania, have invented a new and useful Improvement in School-Desk ;'and I do hereby declare the following to be a full, clear, and exact description thereof, reference being bad to the accompanying drawing making a part of this Specification, in which- Figure 1 is a side view of my improved desk, when folded together;

Figure 2 is a like view of the same, showing the parts when in position for use; and

Figure 3, by a horizontal sectional view, through one of the posts and the end of the seat-back, shows the sliding-hook joint, by the aid of which the seatback is adjnstahly held hi place.

Like letters of reference indicate like parts in each.

My invention relates to the construction of desks and seats for school-room use, and consists in certain features of construction and combination as herein-- alter described, by which both deskand sea-t may be folded into the most compact space, and may also be adjusted up and down, so that the same desk may be readily adapted to the requirements of pupils of every stature. i

To enable others skilled in the art tomake and use my invention, I will proceed to describe its construction and manner of use.

The posts a, at either end, are supported by the two or three-footed pedestals a. Passing over the upper end oi each pair of posts a -is an arch, b, the legs h of each arch being made hollow so that the posts 1; may pass up therein.

Extending horizontally, or nearly so, along the top of each arch b is a box, I), open on its inner side, or, mechanically speaking, a deep groove, in which operates a slide; 1;.

on the inner face of each slide 0 is a pin, 0', which enters a corresponding socket iu the end of the body of the desk, so that the latter may, within the dosircd limits, turn freely thereon.

Each slide c-has a slot, 0, andthrough each such slot, a fixed bolt, 0', passes, so as to limit the length of movement ot'the slide 0.

The body of the desk is made with a top, 11, shelf ll, ends 41, and back 11', of any desired size.

The seat-back f is attached to the forward set of posts a, by means ot'slceves f.

From the ends of the scat-back f lugs y project tor-ward, to which the seat 9 is pivoted or hinged s'o \VILSON, of. New

allowed to hang ill position for use, where it isi'urther supported by chains 9. l

' In the upper edge of the back f the ink-fonts h are placed in the usual way.

The better to gold the back f in place, and through it give a stronger support to the seat 9, a flange, i, on the forward edge of each arch b, engages the flanged or hook-shaped edge of a plate, i, attached to the back f, though other sliding joints of like function may be substituted therefor.

The vertical adjustment of the back 1', and with it of the seat g, is eii'ectcd by square-headed set-screws =h, playing through the sic-eves f, or in other equivalent way.

To facilitate this adjustment, as well as the other headed is that a wrench may be required to loosenthem, which should be kept by the teacher or jani tor, so that the pupils cannot interfere with the arrangement thereof.

When the body of the desk is swung to the position shown in fig. 1, a stop, 0, in each end of the desk, striking the top of the arch b, holds the desk in the proper position. I

Then, to bring it into position so as to be ready-for the scholars use, both it and the slides c, in which it is hung, are pulled directly outward, till the desk-f back 11 will swing clear of the seat-back), and then the body of the desk is tilted to a horizontal position, as shownv iuiig. 2, the stops 0' on its ends engaging the-arch b so as to stop the desk at the proper point.

This stop 0' passes into the outer part of the groove or box I)", in which the slides 0 play when the desk body, slides c, and all are pushed backward to the position shown by dotted lines in fig. 2, when-it is ready for use.

The same stop, 0', being still in the same groove,

all sizes and ages, the adjustment'of seat and desk being separate, but also that the seats and desk can,

with a. momont s work, be folded together so'flmt the school room can be readily cleared for gymnastic exercises, sweeping, &c, a

'VlhatI claim as my invention, and desire to serum by Letters Patent; is- I .1'. A school-desk, pivoted between the slides c,a nd

2. The seat-back f, carrying a. folding seat and "vertically adjustable by'means of sloovesf and hook or flange joints -i i, snl'lstantially as described.

In tostim'onx n'llorcnil I, the said ELIJAl-l WILSON, have hereunto sctlny hand; 1 ELIJAH WILSON Witnessosi D. GnrronLow, J. R M-QBLAN a vertical or horizontal position, in comllinat'lon with boxes I), in which the slides operate fOl'Wflld and back, sngh. boxc's being vertically adilwtahle on the posts; fiilLarmngL-d substantially as dwcribcd 

